Nome piì appropriato
Ferocactus emoryi ssp. rectispinus (Engelm. ex J.M. Coult.) N.P. Taylor (1998) (*)Sinonimi
Nomenclaturali
≡ Ferocactus emoryi ssp. rectispinus (Engelm. ex J.M. Coult.) N.P. Taylor (1998) (*) ≡ Ferocactus emoryi v. rectispinus (Engelm. ex J.M. Coult.) N.P. Taylor (1984) ≡ Echinocactus rectispinus (Engelm. ex J.M. Coult.) Britton & Rose (1911) ≡ Echinocactus emoryi f. rectispinus (Engelm. ex J.M. Coult.) Schelle (1907) ≡ Echinocactus emoryi v. rectispinus Engelm. ex J.M. Coult. (1896)
Filogenetici
